Sinn Watch 144 St Diapal. 144.068 Bracelet Sinn watches continue to impress with their sporty and sophisticated designs, perfect for professional men in need of a reliable and striking timepiece. Found within the bead blasted 41mm stainless steel case of this Sinn 144 St Diapal watch is the Valjoux 7750 GMT self winding movement that can be watched hard at work through the open case back. The movement also boasts Sinn’s famous Diapal technology with lubrication-free escapement. The bold charcoal grey electroplated dial is unmissable beneath the scratch resistant sapphire crystal glass with antireflective treatment, and like many Sinn watches, the dial also boasts indices and hands coated in luminescent colour for optimal visibility even in the dark. The Sinn 144 St Diapal watch is completed by a stainless steel bracelet and folding clasp for effortless wear and comfort.